Winter Weather Advisory issued December 17 at 2:35AM PST until December 18 at 4:00AM PST by NWS Seattle WA

* WHAT…Snow and freezing rain expected at or above elevations
greater than 2500 ft. Total snow accumulations of 3 to 10 inches.
Ice accumulations of up to 0.10 to 0.20 inches near and east of
the crest. Winds gusting as high as 35 mph.

* WHERE…West Slopes North Cascades and Passes, West Slopes North
Central Cascades and Passes, and West Slopes South Central
Cascades and Passes.

* WHEN…Until 4 AM PST Wednesday.

* IMPACTS…Travel could be very difficult with snow and ice on the
roadway.

* ADDITIONAL DETAILS…Periods of snow are expected through this
afternoon, becoming steadier later this morning. Snow will
transition to freezing rain by this evening, then to rain early
Wednesday morning as snow levels gradually climb from 2500 to near
8000 feet. Ice accumulations are most likely across Snoqualmie
and Stevens Passes but cannot be ruled out at White Pass.